Who owns the DDUP trademark?

The DDUP trademark is owned by HUI WEN ZHU.

What class is the DDUP trademark registered in?

The DDUP trademark is registered in Class 009 (Electronics, software & scientific instruments).

What is the serial number for DDUP?

The USPTO serial number for DDUP is 99467758.

What is the registration number for DDUP?

DDUP is registered under USPTO registration number 8272998.

DDUP - Owned by HUI WEN ZHU - (Class 009)

What to file next

Section 8 declaration of continued use

When: Due between the fifth and sixth anniversary of registration.
Extensions and grace: A six-month grace period follows, with an added per-class fee.
If it is missed: A missed Section 8 cancels the registration, and there is no revival route for it.

How the Section 8 deadline works

General information about USPTO practice, not legal advice. The register is the authority, and a filing that has not yet posted can change what is owed.

Full Goods & Services

Class 009Electronics, software & scientific instruments

US codes: 021, 023, 026, 036, 038

First use anywhere: Apr 16, 2025

First use in commerce: Apr 16, 2025

Scientific, research, navigation, surveying, photographic, cinematographic, audiovisual, optical, weighing, measuring, signalling, detecting, testing, inspecting, life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; apparatus and instruments for recording, transmitting, reproducing or processing sound, images or data; recorded and downloadable multimedia files, computer software, blank digital or analogue recording and storage media; mechanisms for coin-operated apparatus; cash registers, calculating devices; computers and computer peripheral devices; diving suits, divers' masks, ear plugs for divers, nose clips for divers, gloves for divers, breathing apparatus for underwater swimming; fire-extinguishing apparatus.

This description is as filed with the USPTO and defines the scope of trademark protection.

Filing Basis & Declarations

Standard Characters ClaimedFiled as Use ApplicationUse Application CurrentlyTrademark

Status History

11 events

REGISTERED-PRINCIPAL REGISTER

May 26, 2026

Code R.PR

NOTICE OF REGISTRATION CONFIRMATION EMAILED

May 26, 2026

Code NRCC

NOTICE OF REGISTRATION CONFIRMATION EMAILED

May 26, 2026

Code NRCC

PUBLISHED FOR OPPOSITION

Apr 07, 2026

Code PUBO

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Apr 07, 2026

Code NPUB

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Apr 01, 2026

Code NONP

APPROVED FOR PUB - PRINCIPAL REGISTER

Mar 13, 2026

Code CNSA

ASSIGNED TO EXAMINER

Mar 12, 2026

Code DOCK

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Feb 11, 2026

Code NWOS

NEW APPLICATION ENTERED

Oct 29, 2025

Code NWAP

APPLICATION FILING RECEIPT MAILED

Oct 29, 2025

Code MAFR

Other Marks in Class 009 — Electronics, software & scientific instruments

Recently filed and registered marks in the same international class.

DDU

DDUP

86643602

HUIWEN, ZHU

ABANDONED

DDU

DDUP

86581921

Chen Zhifeng

ABANDONED

Other Marks by Alondra Paola Andujar

Additional USPTO filings handled by the same attorney of record.

AAI

A A IN

99643515

REGISTERED

CHA

CHAD FUTURE

99812759

REGISTERED

NJN

NJ NAWAZJEE

99597827

REGISTERED

WIN

WINLED MÁS QUE ILUMINACIÓN

99542041

REGISTERED

DDUP

What to file next

Full Goods & Services

Filing Basis & Declarations

Other Marks in Class 009 — Electronics, software & scientific instruments

Other Marks by Alondra Paola Andujar

Get pre-filing clearance

Search 14M+ trademarks

Run a conflict check

Industries

USPTO Deadlines

Compare

Resources

Company

Exceptions